Nonlinear effect measurement based on high-speed optical transmission communication system

The problem of nonlinear effect in high-speed optical transmission communication systems limits the performance of systems; therefore, it needs to be measured and suppressed. In this article, the influence of nonlinear effect was illustrated taking signal phase as an example. Then an Xcross phase modulation (XPM) measurement model was established. It was found through simulation experiment that XPM effect tended to theoretical value with the increase of frequency of radio frequency signal and strengthened with the decrease of dispersion effect. The effectiveness of the measurement method is illustrated and relevant influence factors were verified, providing a reference for the study of nonlinear effect of communication technology.